eCite Digital Repository
Heating‑, cooling‑ and vacuum‑assisted solid‑phase microextraction (HCV‑SPME) for efficient sampling of environmental pollutants in complex matrices
Citation
Ghiasvand, A and Yazdankhah, F and Paull, B, Heating‑, cooling‑ and vacuum‑assisted solid‑phase microextraction (HCV‑SPME) for efficient sampling of environmental pollutants in complex matrices, Chromatographia, 83 pp. 531-540. ISSN 0009-5893 (2020) [Refereed Article]
Copyright Statement
Copyright 2020 Springer-Verlag GmbH Germany, part of Springer Nature
DOI: doi:10.1007/s10337-020-03869-0
Abstract
This research introduces a novel solid-phase microextraction technology, in which the features of heating of sample, cooling of sorbent, and extraction under vacuum condition have been merged. Heating-, cooling- and vacuum-assisted solid-phase microextraction (HCV-SPME) method was developed as an efficient solution for the direct extraction of volatile and semi-volatiles species in complex solid samples. HCV-SPME was coupled with an in-needle capillary adsorption trap (HCV-INCAT) and applied to the direct extraction of polycyclic aromatic hydrocarbons (PAHs) within soil samples. It consisted of polythiophene/carboxylic acid modified multi-walled carbon nanotube nanocomposite, which was synthesized and wall-coated within a platinized stainless-steel needle via electropolymerization. The influential experimental variables (desorption conditions, sample temperature, adsorption temperature, sampling flow rate, and vacuum level) on the extraction efficiency were optimized. The developed HCV-INCAT technique was used in conjunction with GC-FID and applied for the extraction and determination of PAHs in contaminated soil samples, closely matching with those obtained using a validated ultrasonic-assisted solvent extraction procedure. Under the optimal conditions, linear dynamic ranges, limits of detection, and relative standard deviations were obtained 0.007–5 µg g−1, 8–20 pg g−1, and 7.1–12.1%, respectively, for direct extraction of naphthalene, fluorene, phenanthrene, fluoranthene, and pyrene from solid samples.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | heating-, cooling- and vacuum-assisted solid-phase microextraction, in-needle capillary adsorption trap, polycyclic aromatic hydrocarbons, soil |
| Research Division: | Chemical Sciences |
| Research Group: | Analytical chemistry |
| Research Field: | Instrumental methods (excl. immunological and bioassay methods) |
| Objective Division: | Expanding Knowledge |
| Objective Group: | Expanding knowledge |
| Objective Field: | Expanding knowledge in the chemical sciences |
| UTAS Author: | Ghiasvand, A (Professor Alireza Ghiasvand) |
| UTAS Author: | Paull, B (Professor Brett Paull) |
| ID Code: | 137553 |
| Year Published: | 2020 |
| Web of Science® Times Cited: | 11 |
| Deposited By: | Chemistry |
| Deposited On: | 2020-02-19 |
| Last Modified: | 2022-08-22 |
| Downloads: | 0 |
Repository Staff Only: item control page